Chicken with raisins

1 tablespoon butter 1 tablespoon olive oil 3 tablespoons curry powder 1 teaspoon salt 1 teaspoon ground cumin 1/4-1/2 teaspoon cayenne 1 cup onion , chopped 2[...]

1/4 cup unsalted butter 1 medium onion , finely chopped 2 cloves garlic , finely chopped 1 tablespoon finely chopped peeled fresh ginger 3 tablespoons curry[...]